Michael W Wisz

US Patent:

51004461, Mar 31, 1992

Filed:

Jan 7, 1991

Appl. No.:

7/637688

Inventors:

Michael W. Wisz - Tonawanda NY

Assignee:

Union Carbide Industrial Gases Technology Corporation - Danbury CT

International Classification:

F25J 304

US Classification:

62 22

Abstract:

A crude neon production system wherein a small neon-containing stream is taken from a cryogenic air separation plant and processed in a neon column and in a non-cryogenic pressure swing adsorption system to produce crude neon and wherein tail gas from the pressure swing adsorption is recycled back into the air separation plant.

US Patent:

55467679, Aug 20, 1996

Filed:

Sep 29, 1995

Appl. No.:

8/536589

Inventors:

James R. Dray - Kenmore NY
David R. Parsnick - Tonawanda NY
Theodore F. Fisher - Amherst NY
Michael W. Wisz - Tonawanda NY

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

F25J 302

US Classification:

62646

Abstract:

A cryogenic rectification system employing a double column and two auxiliary reboilers associated with one or two auxiliary columns wherein both lower purity oxygen and higher purity oxygen is produced.